The Dodgers won the right to negotiate with Ryu with a $25.7 million bid. If the sides do not come to an agreement by 5 p.m. ET Sunday, the bid would be returned to the club.

Meantime, the Dodgers are focused on other starting pitchers. They would like to sign free-agent right-hander Zack Greinke, but have not yet made an offer. Asked if he'd met with Greinke's agent, Casey Close, Monday, Colletti responded, "I saw Casey today," and declined further comment.

In the hopes of signing two starters, the Dodgers also have shown interest in Anibal Sanchez.

Speaking generally of the starting pitching market – only Hiroki Kuroda has signed among the higher-end free agents – Colletti said negotiations have been deliberate.

"They're going to be methodical," he said. "I think everybody is in diligence mode right now."